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10172056453 = 13782465881
BaseRepresentation
bin10010111100100110…
…10100001110000101
3222020220112000012121
421132103110032011
5131313021301303
64401210245541
7510034024156
oct113623241605
928226460177
1010172056453
11434a951629
121b7a7268b1
13c6153c820
146c6d4d92d
153e80479bd
hex25e4d4385

10172056453 has 4 divisors (see below), whose sum is σ = 10954522348. Its totient is φ = 9389590560.

The previous prime is 10172056361. The next prime is 10172056459. The reversal of 10172056453 is 35465027101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5271776449 + 4900280004 = 72607^2 + 70002^2 .

It is a cyclic number.

It is not a de Polignac number, because 10172056453 - 213 = 10172048261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10172056459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391232928 + ... + 391232953.

It is an arithmetic number, because the mean of its divisors is an integer number (2738630587).

Almost surely, 210172056453 is an apocalyptic number.

10172056453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

10172056453 is a deficient number, since it is larger than the sum of its proper divisors (782465895).

10172056453 is an equidigital number, since it uses as much as digits as its factorization.

10172056453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782465894.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 10172056453 in words is "ten billion, one hundred seventy-two million, fifty-six thousand, four hundred fifty-three".

Divisors: 1 13 782465881 10172056453